Yamaha DTXPRESS Owner's Manual - Page 81
Parameter Change, Bulk Dump, Dump Request, Select a song, timing clock, start, continue, stop, - ii
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MIDI Data Format 2.1 Parameter Change 2.1.1 GM system ON F0 7E 7F 09 01 F7 Sets all the data except the MIDI master tuning data to its initial value. Sends and receives data. 2.1.2 XG system ON F0 43 1n 4C 00 00 7E 00 F7 "n" stands for device number. Executes the same process as GM system ON. Receives only. 2.1.3 identify request F0 7E 0n 06 01 F7 "n" stands for device number. After receiving, the identify reply is transmitted. Receives only. 2.1.4 MIDI master volume F0 7F 7F 04 01 XX mm F7 Ignores "XX". "mm" is the volume. Receives only. 2.1.5 MIDI master tune F0 43 1n 27 30 00 00 mm ll cc F7 "n" stands for device number. The values of "mm(MSnible)" and "II(LSnible)"-128 is used for 1 cent unit when tuning. Receives only. 2.2 Bulk Dump Sends and receives data. All the data except the system data is converted into 1 or 2 byte ASCII characters and transmitted. • DTXPRESS bulk dump common message. F0 43 7D Xn ss ss 44 54 58 4C("DTXL") tt tt tt tt ii ii jj jj dataBytes csum F7 tt tt tt tt ss ss ii ii jj jj csum This displays the ID of the bulk type. 4 characters of ASCII code. data bytes (from model ID to data) MS7bit, LS7bit data packet index number MS7bit, LS7bit If the data size exceeds 4096, the total is divided into F0-F7 packets, the packet index number will start at 00 01 (0001) increasing by 1 for each successive packet. The last packet is 7F 7F (3FFF). When the data size is less than 4096, it will be 00 00 (0000). object number MS7bit, LS7bit Object number. In the DTXPRESS system only 1 article exists, that will become 7F 7F (3FFF). indicates the 7bit of the 2's complement of the sum of the data from the model ID (ss ss) to data Bytes. 2.2.1 system F0 43 7D 0n ss ss 44 54 58 4C("DTXL") 53 59 53 54("SYST") 00 00 7F 7F data csum F7 2.2.2 map F0 43 7D 0n ss ss 44 54 58 4C("DTXL") 55 4D 41 50("UMAP") 00 00 7F 7F data csum F7 2.2.3 drumkit F0 43 7D 0n ss ss 44 54 58 4C("DTXL") 44 4B 49 54("DKIT") 00 00 jj jj data csum F7 jj jj Indicated by MS7bit, LS7bit. This number derived from the user drum kit number by counting from "0". In the case of the edit buffer, it is 7F 7F (3FFF). 2.2.4 trigger F0 43 7D 0n ss ss 44 54 58 4C("DTXL") 54 52 49 47("TRIG") 00 00 jj jj data csum F7 jj jj The user trigger's number MS7bit, LS7bit. 7F 7F specifies the edit buffer 2.2.5 song F0 43 7D 0n ss ss 44 54 58 4C("DTXL") 53 4F 4E 47("SONG") ii ii jj jj data2 csum F7 jj jj data 2 The user song number's MS7bit, LS7bit. 7F 7F specifies the current song. Divides the original data into the 4 bits MSnibble, LSnibble, and converts 1 byte data to 2 bytes. 2.3 Dump Request Receives only. Transmits the corresponding bulk dump. F0 43 7D 2n 44 54 58 4C("DTXL") tt tt tt tt jj jj F7 jj jj object number MS7bit, LS7bit Object number. In the DTXPRESS system only 1 article ex- ists, that will become 7F 7F (3FFF). The object number contains the number that specifies the drum kit number, etc. Only one article exists, system data or edit buffer data, etc., that appoints 7F 7F (3FFF). However, 7F 7F does not correspond in the case of song data. 3. System common message 3.1 Select a song f3 nn "nn" stands for song number. Receives only. 4. Realtime message Sends and receives data. 4.1 timing clock Synchronizes with the timing clock received when the Sync mode in the utility mode's [3-6. Sync Mode] (P. 57) is set to "ext" or "auto". 4.2 start, continue, stop When the [3-4. MIDI Control] (P. 57) in the utility mode is set to "MIDI Control=off", the DTXPRESS will not receive start, continue and stop. 4.3 active sensing Once active sensing data has been received, if no MIDI data is subsequently received for longer than an interval of approximately 300 msec, the DTXPRESS will mute all the sounds. Send the messages within an interval of approximately 300 msec. 81